Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details)

v3.7.0.1
Inventories (Details) - USD ($)
Jun. 30, 2017
Dec. 31, 2016
Inventories    
Finished goods $ 4,718,188 $ 4,132,036
Work in process 369,360 205,116
Raw materials 1,216,549 1,121,688
Inventory, net 6,304,097 5,458,840
Inventory valuation reserves $ 615,000 $ 960,000