INCOME TAXES (Details 1) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets - current:
Bad debt reserves	$ 57,000	$ 52,000
Inventory reserves	1,084,000	1,066,000
Warranty and other reserves	183,000	220,000
Deferred Tax Assets, Gross, Current	1,324,000	1,338,000
Deferred tax (liabilities) - current:
Prepaid expenses	(193,000)	(189,000)
Net deferred tax assets - current	1,131,000	1,149,000
Deferred tax assets - non-current
Federal net operating loss	0	206,000
State net operating loss	143,000	208,000
Tax credits	0	243,000
Stock based compensation	531,000	521,000
Other	107,000	95,000
Deferred Tax Assets, Gross, Noncurrent	781,000	1,273,000
Deferred tax (liabilities) - non-current:
Depreciation	(1,005,000)	(1,036,000)
Intangibles	(2,675,000)	(2,864,000)
Goodwill	(178,000)	(93,000)
Deferred Tax Liabilities, Net, Noncurrent	(3,858,000)	(3,993,000)
Net deferred tax (liabilities) assets - non-current	$ (3,077,000)	$ (2,720,000)