Consolidated Balance Sheets - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Current Assets:
Cash and cash equivalents	$ 3,979,000	$ 12,646,000
Trade accounts receivable, net of allowance of $167 and $135, respectively	14,416,000	10,833,000
Inventories, net of allowance of $2,495 and $946, respectively	13,042,000	13,892,000
Contract assets	1,744,000	2,299,000
Note receivable, current portion	318,000	13,000
Prepaid expenses and other	1,982,000	1,593,000
Total current assets	35,481,000	41,276,000
Property and equipment, less accumulated depreciation of $4,234 and $4,155, respectively	5,973,000	11,242,000
Goodwill	13,089,000	17,641,000
Other intangible assets, less accumulated amortization of $13,190 and $11,900, respectively	13,861,000	15,568,000
Restricted cash	523,000
Note receivable, less current portion		317,000
Convertible notes receivable	655,000
Deposits and other assets	585,000	1,865,000
Total assets	70,167,000	87,909,000
Current Liabilities:
Accounts payable	6,480,000	5,110,000
Short-term overdraft facility	1,344,000
Line of credit	979,000
Mortgage note payable, current portion		94,000
Accrued expenses	4,851,000	4,186,000
Current contract liabilities	2,226,000	8,829,000
Refund liabilities	2,417,000	695,000
Deferred gain on leaseback, current portion	289,000
Total current liabilities	18,586,000	18,914,000
Long term note payable, related party	5,304,000	5,304,000
Long term mortgage note payable, less current portion		3,256,000
Derivative liability		356,000
Deferred tax liabilities	1,922,000	2,414,000
Deferred gain on leaseback, less current portion	2,599,000
Other long-term liabilities	218,000	179,000
Total liabilities	28,629,000	30,423,000
Commitments and contingencies
Stockholders' Equity:
Preferred stock, par value $0.001; 10,000,000 shares authorized; no shares issued at December 31, 2018 or December 31, 2017
Common stock, par value $0.001; 325,000,000 shares authorized; 28,552,886 shares issued and outstanding at December 31, 2018 and 28,406,856 shares issued and outstanding at December 31, 2017	29,000	28,000
Additional paid-in capital	169,898,000	169,527,000
Accumulated deficit	(123,993,000)	(108,559,000)
Accumulated other comprehensive loss	(4,396,000)	(3,510,000)
Total stockholders' equity	41,538,000	59,377,000
Total liabilities and stockholders' equity	$ 70,167,000	87,909,000
Accounting Standards Update 2014-09 [Member]
Current Assets:
Inventories, net of allowance of $2,495 and $946, respectively		(1,064,000)
Contract assets		(516,000)
Total current assets		(1,580,000)
Total assets		(1,580,000)
Current Liabilities:
Current contract liabilities		(4,168,000)
Refund liabilities		870,000
Total current liabilities		(3,298,000)
Deferred tax liabilities		(173,000)
Total liabilities		(3,471,000)
Stockholders' Equity:
Accumulated deficit		1,891,000
Total stockholders' equity		1,891,000
Total liabilities and stockholders' equity		(1,580,000)
Previously Reported [Member] | Accounting Standards Update 2014-09 [Member]
Stockholders' Equity:
Total stockholders' equity		$ 57,486,000