CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Jun. 30, 2012
Current assets:
Cash and cash equivalents	$ 83,056	$ 84,053
Receivables, net of allowance for doubtful accounts of $272 and $760, respectively (notes 7 and 18)	32,360	31,601
Inventories (note 8)	30,185	27,760
Prepaid expenses, prepaid taxes and other current assets	5,429	2,851
Revenue recognized in excess of billings on uncompleted contracts	5,342	2,371
Deferred income taxes (note 16)	7,261	8,004
Total current assets	163,633	156,640
Marketable securities (note 5)	662	729
Property, plant and equipment, net (note 9)	34,343	33,694
Deferred income taxes (note 16)	14,967	13,760
Intangible assets, net (note 10)	4,615	5,198
Total assets	218,220	210,021
Current liabilities:
Accounts payable	7,170	9,613
Progress payments and deferred revenue	4,538	5,482
Billings in excess of costs and estimated earnings on uncompleted contracts	6,481
Accrued salaries and wages	3,746	6,198
Other accrued expenses (note 11 and 16)	4,681	7,234
Income taxes payable (note 16)	19	416
Total current liabilities	26,635	28,943
Deferred income taxes (note 16)	704	2,580
Other long-term liabilities	4,997	2,518
Total liabilities	32,336	34,041
Commitments and contingencies (note 12)
Equity (notes 14 and 15):
Common stock, $ .10 par value per share: 40,000,000 shares authorized; 20,858,158 shares issued (20,499,861 in 2012); 18,532,623 shares outstanding (18,239,941 in 2012)	2,086	2,050
Additional paid-in capital	180,324	176,305
Retained earnings	30,104	22,253
Accumulated other comprehensive income (loss):
Currency translation effects	(641)	(186)
Unrealized loss on hedge (note 19)	(16)
Less treasury stock, at cost; 2,325,535 common shares (2,259,920 in 2012)	28,016	26,797
Total shareholders’ equity - Zygo Corporation	183,841	173,625
Noncontrolling interests	2,043	2,355
Total equity	185,884	175,980
Total liabilities and equity	$ 218,220	$ 210,021