Contracts in Process (Schedule of Contracts in Process) (Details) - USD ($)	Jun. 30, 2018	Jun. 30, 2017
Contractors [Abstract]
Unrecognized gross contract value	$ 48,100,984	$ 43,140,921
Costs related to contracts in process, net of progress payments of $102,924 and $1,366,504 at June 30, 2018 and 2017, respectively	$ 8,777,079	$ 7,863,538

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://fasb.org/us-gaap/role/ref/legacyRef
-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