Contracts in Process (Schedule of Contracts in Process) (Details) - USD ($)	Jun. 30, 2017	Jun. 30, 2016
Contractors [Abstract]
Gross contract value	$ 43,140,921	$ 39,061,415
Costs related to contracts in process, net of progress payments of $1,366,504 and $18,313 at June 30, 2017 and 2016	$ 7,863,538	$ 8,810,145

Amount before valuation and LIFO reserves, and progress payments, of inventory associated with long-term contracts, expected to be sold, or consumed within one year or operating cycle, if longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.6(a),(d))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_InventoryForLongTermContractsOrPrograms
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant