Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 26,922	$ 41,904
Marketable securities	23,226	20,004
Accounts receivable, net of allowance of $605 in 2014 and $388 in 2013	74,051	45,789
Unbilled receivables	22,324	16,009
Inventory	6,253	9,890
Deferred project costs and other current assets	17,977	15,286
Total current assets	170,753	148,882
Property and equipment, net of accumulated depreciation and amortization of $83,645 in 2014 and $73,068 in 2013	33,418	38,355
Software development costs, net of accumulated amortization of $3,072 in 2014 and $1,791 in 2013	4,608	4,178
Acquired intangible assets, net of accumulated amortization of $13,970 in 2014 and $10,173 in 2013	17,206	21,003
Goodwill	104,241	104,241
Other assets	3,855	4,796
Total assets	334,081	321,455
Current liabilities:
Accounts payable and accrued expenses	41,599	24,372
Accrued payroll and related liabilities	13,599	14,378
Deferred revenue	22,000	24,809
Current portion of bank borrowings and notes payable, and capital lease obligations	19,291	30,145
Total current liabilities	96,489	93,704
Notes payable and capital lease obligations, less current portion	119,850	117,384
Deferred tax liabilities	3,556
Other liabilities	1,340	1,124
Stockholders’ equity:
Additional paid-in capital	346,277	340,814
Accumulated other comprehensive (loss) income	(114)	27
Accumulated deficit	(233,917)	(232,186)
Total stockholders’ equity	112,846	109,243
Total liabilities and stockholders’ equity	334,081	321,455
Class A Common Stock
Stockholders’ equity:
Common stock, value	552	538
Total stockholders’ equity	552	538
Class B Common Stock
Stockholders’ equity:
Common stock, value	48	50
Total stockholders’ equity	$ 48	$ 50