Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Jun. 30, 2015
Current assets:
Cash and cash equivalents	$ 81,554	$ 77,586
Accounts receivable, net of allowance for doubtful accounts of $52 and $56 at December 31, 2015 and June 30, 2015, respectively	35,468	31,765
Unbilled receivables and costs in excess of billings	24,645	22,021
Inventory	36,707	31,960
Deferred income taxes	12,363	12,407
Prepaid income taxes	2,880	3,747
Prepaid expenses and other current assets	5,361	8,678
Total current assets	198,978	188,164
Restricted cash	264	264
Property and equipment, net	13,324	13,226
Estimated fair value of goodwill	173,749	168,146
Intangible assets, net	18,608	17,998
Other non-current assets	3,169	2,190
Total assets	408,092	389,988
Current liabilities:
Accounts payable	11,858	6,928
Accrued expenses	8,719	9,005
Accrued compensation	11,409	9,875
Deferred revenues and customer advances	9,406	7,477
Total current liabilities	41,392	33,285
Deferred gain on sale-leaseback	350	929
Deferred income taxes	2,287	3,108
Income taxes payable	1,505	1,459
Other non-current liabilities	1,100	1,069
Total liabilities	$ 46,634	$ 39,850
Commitments and contingencies (Note I)
Shareholders' equity:
Preferred stock, $0.01 par value; 1,000,000 shares authorized; no shares issued or outstanding	$ 0	$ 0
Common stock, $0.01 par value; 85,000,000 shares authorized; 33,240,461 and 32,570,959 shares issued and outstanding at December 31, 2015 and June 30, 2015, respectively	332	326
Additional paid-in capital	259,140	254,568
Retained earnings	101,221	94,468
Accumulated other comprehensive income	765	776
Total shareholders' equity	361,458	350,138
Total liabilities and shareholders' equity	$ 408,092	$ 389,988