Condensed Consolidated Balance Sheets - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Current Assets:
Cash and cash equivalents	$ 5,166,484	$ 11,704,361
Short term investments held to maturity	3,985,000	11,159,765
Trade accounts receivable, net of allowance of $240,505 and $253,871, respectively	14,474,747	9,979,733
Inventories, net of allowance of $417,683 and $394,165, respectively	11,242,084	6,840,845
Costs in excess of billings	2,075,282	1,888,849
Prepaid expenses and other	3,062,777	1,552,411
Total current assets	40,006,374	43,125,964
Property and equipment, net	11,042,067	8,141,682
Other Assets:
Investment - equity method	356,144	332,429
Other intangible assets, net	19,787,900	19,436,261
Deposits and other	74,835	130,579
Goodwill	22,054,379	21,886,958
Total other assets	42,273,258	41,786,227
Total assets	93,321,699	93,053,873
Current Liabilities:
Accounts payable	5,164,282	3,833,749
Mortgage note payable, current portion	82,792	80,746
Leases payable, current	26,643	32,723
Accrued expenses	4,161,746	3,161,258
Billings in excess of costs	3,728,205	3,623,906
Unearned revenue	3,137,635	1,622,579
Total current liabilities	16,301,303	12,354,961
Long term leases payable	62,191	74,071
Derivative liability	552,585	599,698
Long term mortgage note payable, net of current portion of $82,792 and $80,746, respectively	3,481,418	3,523,496
Long term notes payable, related party	5,303,683	5,303,683
Contingent consideration, net of current portion of $60,000 and $0, respectively	155,500	0
Deferred property grant	143,359	0
Deferred revenue	191,248	131,565
Deferred tax liabilities, net	4,904,404	5,096,063
Total long term liabilities	14,794,388	14,728,576
Total liabilities	$ 31,095,691	$ 27,083,537
Commitments and contingencies
Stockholders' Equity:
Common stock, par value $0.001; 325,000,000 shares authorized; 20,793,207 shares issued and outstanding at June 30, 2015 and 20,747,740 shares issued and outstanding at December 31, 2014	$ 20,793	$ 20,748
Additional paid-in capital	148,937,465	148,397,980
Accumulated deficit	(87,296,776)	(82,716,744)
Accumulated other comprehensive income	564,526	268,352
Total stockholders' equity	62,226,008	65,970,336
Total liabilities and stockholders' equity	$ 93,321,699	$ 93,053,873