DEI Document - shares	3 Months Ended
	Mar. 31, 2019	Apr. 30, 2019
Entity [Abstract]
Entity Registrant Name	New Home Co Inc.
Entity Central Index Key	0001574596
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		20,049,113
Entity Emerging Growth Company	true
Entity Ex Transition Period	true
Entity Small Business	true